Charles Darwin - Descent of Man, extract Vol. 2, Part 2, 316-317 lyrics

WITH mankind the differences between the s**es are greater than in most species of Quadrumana, but not so great as in some, for instance, the mandrill. Man on an average is considerably taller, heavier, and stronger than woman, with squarer shoulders and more plainly-pronounced muscles. Owing to the relation which exists between muscular development and the projection of the brows (1), the superciliary ridge is gene- rally more strongly marked in man than in woman. His body, and especially his face, is more hairy, and his voice has a different and more powerful tone. In certain tribes the women are said, whether truly I know not, to differ slightly in tint from the men; and with Europeans, the women are perhaps the more brightly coloured of the two, as may be seen when both s**es have been equally exposed to the weather. Man is more courageous, pugnacious, and energetic than woman, and has a more inventive genius. His brain is absolutely larger, but whether relatively to the larger size of his body, in comparison with that of woman, has not, I believe been fully ascertained. In woman the face is rounder; the jaws and the base of the skull smaller; the outlines of her body rounder, in parts more prominent; and her pelvis is broader than in man; (2) but this latter character may perhaps be considered rather as a primary than a secondary s**ual character. She comes to maturity at an earlier age than man. (1) Schaaffhausen, translation in ‘Anthropological Review,' Oct. 1868, p. 419, 420,427. (2) Ecker, translation in ‘Anthropological Review' Oct. 1868, p. 351- 356. The comparison of the skull in men & and women has, been followed out with much care by Welcker.